:root {
  color-scheme: light;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #5a6675;
  --border: #d5dce5;
  --primary: #1f6feb;
  --primary-dark: #1a5fd0;
  --ok: #1a7f42;
  --ok-bg: #e6f6ec;
  --err: #c62828;
  --err-bg: #fdecea;
  --shadow: 0 2px 10px rgba(20, 40, 70, .08);
  --radius: 12px;
}
/* Сайт навмисно завжди світлий — тему не адаптуємо під системну. */
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  line-height: 1.5; font-size: 16px;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 20px 16px 80px; }

.lang-switch { display: flex; justify-content: flex-end; gap: 6px; padding-top: 14px; }
.lang-btn {
  border: 1.5px solid var(--border); background: var(--card); color: var(--muted);
  font-weight: 700; font-size: .82rem; padding: 6px 12px; border-radius: 8px; cursor: pointer;
}
.lang-btn.active { border-color: var(--primary); background: rgba(31,111,235,.10); color: var(--primary); }

header.top {
  text-align: center; padding: 18px 12px 6px;
}
header.top h1 { font-size: 1.4rem; margin: 0 0 4px; }
header.top .en { color: var(--muted); font-weight: 500; font-size: 1.05rem; }
header.top p.sub { color: var(--muted); font-size: .92rem; margin: 10px auto 0; max-width: 620px; }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 18px; margin: 16px 0;
}
.group-title { margin: 4px 0 14px; font-size: 1.1rem; display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.group-title .en { color: var(--muted); font-weight: 500; font-size: .95rem; }
.group-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--primary); color: #fff; font-size: .85rem; font-weight: 700; flex: none;
}

.field { margin: 0 0 16px; }
.field:last-child { margin-bottom: 4px; }
.field label.lbl { display: block; font-weight: 600; margin-bottom: 5px; }
.field label.lbl .en { color: var(--muted); font-weight: 500; }
.req { color: var(--err); margin-left: 2px; }
.hint { color: var(--muted); font-size: .83rem; margin-top: 4px; }

input[type=text], input[type=tel], input[type=number], select, textarea {
  width: 100%; padding: 11px 12px; font-size: 1rem; color: var(--text);
  background: var(--card); border: 1.5px solid var(--border); border-radius: 9px;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
input.invalid, select.invalid, textarea.invalid { border-color: var(--err); background: var(--err-bg); }
.field .err-msg { color: var(--err); font-size: .83rem; margin-top: 5px; display: none; }
.field.has-error .err-msg { display: block; }

.radio-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.radio-opt {
  flex: 1 1 120px; position: relative;
}
.radio-opt input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.radio-opt span {
  display: block; text-align: center; padding: 11px 8px; border: 1.5px solid var(--border);
  border-radius: 9px; cursor: pointer; font-weight: 600; user-select: none;
}
.radio-opt span .en { color: var(--muted); font-weight: 500; font-size: .85rem; }
.radio-opt input:checked + span { border-color: var(--primary); background: rgba(31,111,235,.10); color: var(--primary); }
.radio-opt input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }

.consent-box { display: flex; gap: 10px; align-items: flex-start; }
.consent-box input[type=checkbox] { width: 22px; height: 22px; margin-top: 2px; flex: none; }

.captcha { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.captcha .q { font-size: 1.15rem; font-weight: 700; }
.captcha input { max-width: 110px; }
.captcha button.refresh {
  background: none; border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; cursor: pointer; color: var(--muted); font-size: .9rem;
}

.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
button.btn {
  font-size: 1.05rem; font-weight: 700; padding: 13px 22px; border: none;
  border-radius: 10px; cursor: pointer; background: var(--primary); color: #fff;
}
button.btn:hover { background: var(--primary-dark); }
button.btn.secondary { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
button.btn:disabled { opacity: .6; cursor: not-allowed; }

.banner { padding: 12px 14px; border-radius: 10px; margin: 12px 0; display: none; }
.banner.show { display: block; }
.banner.error { background: var(--err-bg); color: var(--err); border: 1px solid var(--err); }
.banner.ok { background: var(--ok-bg); color: var(--ok); border: 1px solid var(--ok); }

/* Модальне вікно перевірки */
.modal-back {
  position: fixed; inset: 0; background: rgba(10,20,35,.55); display: none;
  align-items: flex-start; justify-content: center; padding: 20px; overflow-y: auto; z-index: 50;
}
.modal-back.show { display: flex; }
.modal {
  background: var(--card); border-radius: var(--radius); max-width: 640px; width: 100%;
  box-shadow: 0 10px 40px rgba(0,0,0,.35); padding: 22px; margin: auto;
}
.modal h2 { margin: 0 0 4px; }
.modal .sub { color: var(--muted); margin: 0 0 14px; font-size: .9rem; }
.review-table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.review-table th, .review-table td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
.review-table th { width: 52%; font-weight: 600; color: var(--muted); }
.review-confirm { display: flex; gap: 10px; align-items: flex-start; margin: 16px 0; }
.review-confirm input { width: 22px; height: 22px; margin-top: 2px; flex: none; }

.success-screen { text-align: center; padding: 40px 16px; display: none; }
.success-screen.show { display: block; }
.success-screen .check {
  width: 76px; height: 76px; border-radius: 50%; background: var(--ok-bg); color: var(--ok);
  display: flex; align-items: center; justify-content: center; font-size: 44px; margin: 0 auto 16px;
}
.success-screen .id { color: var(--muted); }

footer.foot { text-align: center; color: var(--muted); font-size: .8rem; margin-top: 30px; }
footer.foot a { color: var(--muted); }

.loading { text-align: center; color: var(--muted); padding: 40px; }